Materials Literature
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Objective To study the sensitization of silk fibroin-based nerve guidance conduits (SF-NGCs) in vitro. Methods According to ISO 10993-10:1995 standard, maximization test was conducted in guinea pig. The skin sensitization reactions, including erythema and oedema, induced by SF-NGCs, normal saline and formalin solution…
The paper summarizes the process of the single bar VPI project implemented in DFEM,and describes the property of impregnating resin and mica tape used in the VPI system.Large number of testings both in insulation system and technical processing have been carried out by using worldwide accepted methods,such as delamina…
The authors postulated up a chemical model with six reaction equations and integrated Surovikin's soot formation model,NSC(Nagle and Strickland-Constable) soot oxidation model and Neoh's soot oxidation model into the KIVA3 code.The investigation on the soot formation and oxidation in the D6114 diesel engine was conduc…
Surface flashover phenomena in vacuum restrict the overall performance of insulation system,which seriously limits the development of high voltage electro-vacuum devices.On the basis of the low melting temperature machinable glass ceramic for vacuum insulation system,which has excellent machinable performance and good…
The complemented shrinkage concrete design and construction situation with HEA expansive agent in large scale water tank engineering of Changxing island water purifying plant were introduced.It pointed out that concrete blended with HEA high performance concrete expanding agent,replaced the late poured band with expan…
Porous acrylonitrile/methyl acrylate copolymer was prepared by suspended emulsion polymerization,using water as dispersed phase,acrylonitrile(AN) and methyl acrylate(MA) as continuous phase,polyvinyl alcohol(PVA) as dispersant agent.The morphology,particle size and size distributions,and the structure of AN/MA copolym…
Though using epoxy resin glued with carbon fibers for reinforcement RC beam has a certain degree of shear reinforcement effect at room temperature,but it has lower shear reinforcement effect or even loss at 250 ℃ for 60 min.Geopolymer was used in place of epoxy resin for the adhesion of reinforcing materials to provid…
The dielectric properties and relaxation of La2O3 doped (Na0.5Bi0.5)0.94Ba0.06TiO3 lead-free piezoelectric ceramics were investigated. X-ray diffraction showed that La ions diffused into the lattice of (Na0.5Bi0.5)0.94Ba0.06TiO3 to form a solid solution with perovskite-type structure. The temperature dependence of die…
Nanostructured manganese oxides with ideal capacitive behavior for electrochemical capacitors were synthesized by a simple chemical deposition method.The morphology and structure of the material were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),and X-ray diffraction(XRD).Cyc…
Using (meth) acrylate,styrene as the main monomer,ethylene glycol dimethyl acrylate(EGDMA)and divinyl benzene (DVB) as crosslinker,a series of high oil-absorbing resins were synthesized by means of suspension copolymerization.The effect on the composing of the resin monomer,chain length of acrylic acid monomer,crossli…
This paper discussed the main safety issues of Uranium-Gadolinium fuel management in Tianwan NPP.It described the scope of fuel management analyses,the melting temperature of Uranium-Gadolinium fuel pellet,the interrelated safety analyses and operational experience.The feedback on the NPP fuel management is also given.
In this paper,some problems for model law of underwater explosion tests have been solved.These problems are experimental simulations of cut-off at water surface,buck cavitation,equipment on ship,thickness of model ship,strain ratio and selection of hydrodynamic similarity parameters in fluid-structure matching,respect…
The films of(RuO2/SnO2)·nH2O on tantalum substrate are prepared by electrodeposition.It has effect on the capacitance of(RuO2/SnO2)·nH2O films that the molar concentration ratio of Sn2+ and Ru3+in the initial electrodeposition liquid and heat-treatment.Morphology and phase are studied by scan electron microscopy,X-ray…
The fatigue behavior of GH4033 nickel-based alloy at 400、500、600 and 700 ℃ were studied with the total strain–controlled method on the INSTRON8032, and the fracture of fatigue was observed by SEM. The experimental results are analyzed with Manson-Coffin’s law, The LCF parameters of this material at these temperatures…
PDMS templates were prepared by replica molding against fresh lotus leaves.Then low-density polyethylene(LDPE) was melted and pressed onto the featured surface of the PDMS template in a vacuum oven.After cooling to room temperature and being peeled off from the templates,polyethylene films with superhydrophobic surfac…
In order to define the influence of isothermal-forging parameters on TC6 Titanium alloy microstructure and properties within the(+) phase region,TC6 titanium alloy was forged at different temperatures and forging rates.The results show that,at the chosen forging parameters,the forging microstructure are all two-model…
A new method named polymer plating was developed for surface modification of stainless steel plates with different functional groups of organic solutions.The polymer-plated films on the surface of stainless steel plates were characterized by Fourier transform infrared spectra,contact angle and surface free energy.Comp…
Salt-sensitive cucumber cultivar'Jinyou No.1'was used to study interactive effect of salicylic acid and chitosan on induced salt tolerance of cucumber seedlings by hydroponic culture method.The results showed that SA and CTS mixture increased seedling index of cucumber seedlings by 15.39 %,8.31 %,8.02 % compared with…
In this paper,with the screw as an example,the process that developing the standard-part library for the cold rotary forging moulds is introduced in detail.The standard-part library was developed by using the API functions of SolidWorks,ADO technology and variational Design technology with VB as the platform.It has gr…
Density functional theory and slab models are comprehensively used to study the adsorption behavior of NH3 on Ru(0001) and Ru(1010) surfaces.The calculations have shown that NH3 favors the top position on both surfaces.The adsorption energy of NH3 on Ru(1010) surface is 1.08 eV,which is larger than on Ru(0001) surface…